/*
 * This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "razorfen_downs.h"
#include "Cell.h"
#include "CellImpl.h"
#include "CreatureScript.h"
#include "GridNotifiers.h"
#include "PassiveAI.h"
#include "Player.h"
#include "ScriptedCreature.h"

/// @todo: this import is not necessary for compilation and marked as unused by the IDE
//  however, for some reasons removing it would cause a damn linking issue
//  there is probably some underlying problem with imports which should properly addressed
//  see: https://github.com/azerothcore/azerothcore-wotlk/issues/9766
#include "GridNotifiersImpl.h"

/*######
## npc_belnistrasz for Quest 3525 "Extinguishing the Idol"
######*/

Position const PosSummonSpawner[3] =
{
    { 2582.789f, 954.3925f, 52.48214f, 3.787364f  },
    { 2569.42f,  956.3801f, 52.27323f, 5.427974f  },
    { 2570.62f,  942.3934f, 53.7433f,  0.715585f  }
};

enum Belnistrasz
{
    EVENT_CHANNEL                = 1,
    EVENT_IDOL_ROOM_SPAWNER      = 2,
    EVENT_PROGRESS               = 3,
    EVENT_COMPLETE               = 4,
    EVENT_FIREBALL               = 5,
    EVENT_FROST_NOVA             = 6,

    PATH_ESCORT                  = 871710,
    POINT_REACH_IDOL             = 18,

    QUEST_EXTINGUISHING_THE_IDOL = 3525,

    SAY_QUEST_ACCEPTED           = 0,
    SAY_EVENT_START              = 1,
    SAY_EVENT_THREE_MIN_LEFT     = 2,
    SAY_EVENT_TWO_MIN_LEFT       = 3,
    SAY_EVENT_ONE_MIN_LEFT       = 4,
    SAY_EVENT_END                = 5,
    SAY_AGGRO                    = 6, // Combat
    SAY_WATCH_OUT                = 7, // 25% chance to target random creature and say on wave spawn

    SPELL_ARCANE_INTELLECT       = 13326,
    SPELL_FIREBALL               = 9053,
    SPELL_FROST_NOVA             = 11831,
    SPELL_IDOL_SHUTDOWN_VISUAL   = 12774, // Hits Unit Entry: 8662
    SPELL_IDOM_ROOM_CAMERA_SHAKE = 12816  // Dummy needs scripting
};

class npc_belnistrasz : public CreatureScript
{
public:
    npc_belnistrasz() : CreatureScript("npc_belnistrasz") { }

    struct npc_belnistraszAI : public ScriptedAI
    {
        npc_belnistraszAI(Creature* creature) : ScriptedAI(creature)
        {
            instance = creature->GetInstanceScript();
            eventInProgress = false;
            spawnerCount = 0;
        }

        void Reset() override
        {
            if (!eventInProgress)
            {
                if (!me->HasAura(SPELL_ARCANE_INTELLECT))
                    DoCast(me, SPELL_ARCANE_INTELLECT);

                channeling = false;
                eventProgress = 0;
                spawnerCount  = 0;
                me->SetNpcFlag(UNIT_NPC_FLAG_QUESTGIVER);
                me->SetReactState(REACT_AGGRESSIVE);
            }
        }

        void JustEngagedWith(Unit* who) override
        {
            if (channeling)
                Talk(SAY_WATCH_OUT, who);
            else
            {
                events.ScheduleEvent(EVENT_FIREBALL, 1s);
                events.ScheduleEvent(EVENT_FROST_NOVA, 8s, 12s);
                if (urand(0, 100) > 40)
                    Talk(SAY_AGGRO, who);
            }
        }

        void JustDied(Unit* /*killer*/) override
        {
            me->DespawnOrUnsummon(5s);
        }

        void sQuestAccept(Player* /*player*/, Quest const* quest) override
        {
            if (quest->GetQuestId() == QUEST_EXTINGUISHING_THE_IDOL)
            {
                eventInProgress = true;
                Talk(SAY_QUEST_ACCEPTED);
                me->RemoveNpcFlag(UNIT_NPC_FLAG_QUESTGIVER);
                me->SetFaction(FACTION_ESCORTEE_N_NEUTRAL_ACTIVE);
                me->GetMotionMaster()->MoveWaypoint(PATH_ESCORT, false);
            }
        }

        void MovementInform(uint32 type, uint32 id) override
        {
            if (type == WAYPOINT_MOTION_TYPE && id == POINT_REACH_IDOL)
            {
                channeling = true;
                events.ScheduleEvent(EVENT_CHANNEL, 2s);
            }
        }

        void UpdateAI(uint32 diff) override
        {
            if (!eventInProgress)
                return;

            events.Update(diff);

            while (uint32 eventId = events.ExecuteEvent())
            {
                switch (eventId)
                {
                    case EVENT_CHANNEL:
                        Talk(SAY_EVENT_START);
                        DoCast(me, SPELL_IDOL_SHUTDOWN_VISUAL);
                        events.ScheduleEvent(EVENT_IDOL_ROOM_SPAWNER, 100ms);
                        events.ScheduleEvent(EVENT_PROGRESS, 120s);
                        me->SetReactState(REACT_PASSIVE);
                        break;
                    case EVENT_IDOL_ROOM_SPAWNER:
                        if (Creature* creature = me->SummonCreature(NPC_IDOL_ROOM_SPAWNER, PosSummonSpawner[urand(0, 2)], TEMPSUMMON_TIMED_DESPAWN, 4000))
                            creature->AI()->SetData(0, spawnerCount);
                        if (++spawnerCount < 8)
                            events.ScheduleEvent(EVENT_IDOL_ROOM_SPAWNER, 35s);
                        break;
                    case EVENT_PROGRESS:
                        {
                            switch (eventProgress)
                            {
                                case 0:
                                    Talk(SAY_EVENT_THREE_MIN_LEFT);
                                    ++eventProgress;
                                    events.ScheduleEvent(EVENT_PROGRESS, 1min);
                                    break;
                                case 1:
                                    Talk(SAY_EVENT_TWO_MIN_LEFT);
                                    ++eventProgress;
                                    events.ScheduleEvent(EVENT_PROGRESS, 1min);
                                    break;
                                case 2:
                                    Talk(SAY_EVENT_ONE_MIN_LEFT);
                                    ++eventProgress;
                                    events.ScheduleEvent(EVENT_PROGRESS, 1min);
                                    break;
                                case 3:
                                    events.CancelEvent(EVENT_IDOL_ROOM_SPAWNER);
                                    me->InterruptSpell(CURRENT_CHANNELED_SPELL);
                                    Talk(SAY_EVENT_END);
                                    events.ScheduleEvent(EVENT_COMPLETE, 3s);
                                    break;
                            }
                            break;
                        }
                    case EVENT_COMPLETE:
                        {
                            DoCast(me, SPELL_IDOM_ROOM_CAMERA_SHAKE);
                            me->SummonGameObject(GO_BELNISTRASZS_BRAZIER, 2577.196f, 947.0781f, 53.16757f, 2.356195f, 0, 0, 0.9238796f, 0.3826832f, 3600);
                            std::list<WorldObject*> ClusterList;
                            Acore::AllWorldObjectsInRange objects(me, 50.0f);
                            Acore::WorldObjectListSearcher<Acore::AllWorldObjectsInRange> searcher(me, ClusterList, objects);
                            Cell::VisitObjects(me, searcher, 50.0f);
                            for (std::list<WorldObject*>::const_iterator itr = ClusterList.begin(); itr != ClusterList.end(); ++itr)
                            {
                                if (Player* player = (*itr)->ToPlayer())
                                {
                                    if (player->GetQuestStatus(QUEST_EXTINGUISHING_THE_IDOL) == QUEST_STATUS_INCOMPLETE)
                                        player->CompleteQuest(QUEST_EXTINGUISHING_THE_IDOL);
                                }
                                else if (GameObject* go = (*itr)->ToGameObject())
                                {
                                    if (go->GetEntry() == GO_IDOL_OVEN_FIRE || go->GetEntry() == GO_IDOL_CUP_FIRE || go->GetEntry() == GO_IDOL_MOUTH_FIRE)
                                        go->Delete();
                                }
                            }
                            instance->SetData(GO_BELNISTRASZS_BRAZIER, DONE);
                            me->DespawnOrUnsummon();
                            break;
                        }
                    case EVENT_FIREBALL:
                        if (me->HasUnitState(UNIT_STATE_CASTING) || !UpdateVictim())
                            return;
                        DoCastVictim(SPELL_FIREBALL);
                        events.ScheduleEvent(EVENT_FIREBALL, 8s);
                        break;
                    case EVENT_FROST_NOVA:
                        if (me->HasUnitState(UNIT_STATE_CASTING) || !UpdateVictim())
                            return;
                        DoCast(me, SPELL_FROST_NOVA);
                        events.ScheduleEvent(EVENT_FROST_NOVA, 15s);
                        break;
                }
            }
            if (!channeling)
                DoMeleeAttackIfReady();
        }

    private:
        InstanceScript* instance;
        EventMap events;
        bool eventInProgress;
        bool channeling;
        uint8 eventProgress;
        uint8 spawnerCount;
    };

    CreatureAI* GetAI(Creature* creature) const override
    {
        return GetRazorfenDownsAI<npc_belnistraszAI>(creature);
    }
};

class npc_idol_room_spawner : public CreatureScript
{
public:
    npc_idol_room_spawner() : CreatureScript("npc_idol_room_spawner") { }

    struct npc_idol_room_spawnerAI : public NullCreatureAI
    {
        npc_idol_room_spawnerAI(Creature* creature) : NullCreatureAI(creature)
        {
        }

        void SetData(uint32 /*type*/, uint32 data) override
        {
            if (data < 7)
            {
                me->SummonCreature(NPC_WITHERED_BATTLE_BOAR, me->GetPositionX(),  me->GetPositionY(),  me->GetPositionZ(),  me->GetOrientation());
                if (data > 0 && me->GetOrientation() < 4.0f)
                    me->SummonCreature(NPC_WITHERED_BATTLE_BOAR, me->GetPositionX(),  me->GetPositionY(),  me->GetPositionZ(),  me->GetOrientation());
                me->SummonCreature(NPC_DEATHS_HEAD_GEOMANCER, me->GetPositionX() + (cos(me->GetOrientation() - (M_PI / 2)) * 2), me->GetPositionY() + (std::sin(me->GetOrientation() - (M_PI / 2)) * 2), me->GetPositionZ(),  me->GetOrientation());
                me->SummonCreature(NPC_WITHERED_QUILGUARD, me->GetPositionX() + (cos(me->GetOrientation() + (M_PI / 2)) * 2), me->GetPositionY() + (std::sin(me->GetOrientation() + (M_PI / 2)) * 2), me->GetPositionZ(),  me->GetOrientation());
            }
            else if (data == 7)
                me->SummonCreature(NPC_PLAGUEMAW_THE_ROTTING, me->GetPositionX(),  me->GetPositionY(),  me->GetPositionZ(),  me->GetOrientation());
        }
    };

    CreatureAI* GetAI(Creature* creature) const override
    {
        return GetRazorfenDownsAI<npc_idol_room_spawnerAI>(creature);
    }
};

void AddSC_razorfen_downs()
{
    new npc_belnistrasz();
    new npc_idol_room_spawner();
}
